Double pan hopper



June 1940- .J. c. SCHUMACHER' DOUBLE PAN HOPPER Filed Feb. 5, 1939 3Sheets-Sheet 1 6 0 w z l 7 3 WW x .w 9 R 5 M a {OJ /x 2 y 7 5 B M wINVENTOR. L/OH/l CZ SCHL/MQCHEI? BY 27 W ATTORNEY.

J. c. SCHUMACHER 2,204,704 DOUBLE PAN zioPPER June 18, 1940.

Filed Feb. 5, 1939 5 Sheets-Sheet 2 #vvewrofi JOHN C. SCHLJMQCHEP H TTOFP/ 76 v June 1940- J. c. SCHUMACHER 2,204,704

DOUBLE PAN HOPPER Patented June 18, 1940 UNITED. STATES. PATENT OFFICEDOUBLE PAN HOPPER John C. Sohumacher, Dayton, Ohio, assignor to TheDayton Manufacturing Company, Dayton, Ohio, a corporation of OhioApplication February 3, 1939, Serial No. 254,455

28 Claims.

This invention relates to improvements in waterclosets designed to beused in connection with transportation vehicles.

It is particularly an object of this invention to provide a hopper for awater closet in which all weights areeliminated.

It is also an object of .this invention to provide a water closet havingthe usual flush pans which are positively operated and controlled sothat all pan flopping is-eliminated, and in which there is maintained aminimum Water seal approximately double that previously obtainable.

It is also an object of this invention to provide a water closet havinga plurality of pans for flushing purposes, one of said pans being in anormally closed position and. forming a water sealwhile the other pan isin an open position.

It is also an object of this invention to provide a water closet havinga pair of pans so constructed and operated that one is normally closedwhile the other is opened and maintained in these positions without anywabbling or flopping of the pans, so that a permanent water seal ismaintained until the pans are operated for flushing purposes in whichoperation the open pan is first closed and thereafter the closed orwater sealed pan is open.

Q It is alsoan object of this invention to provide a water closet havinga plurality of flushing pans I normally held in one operative position,and automaticallyi eturn to said position after flushing operation.

These and other advantages will appear from the following descriptiontaken in connection lower pan. is shown in its lower open position.

The parts are in their normal positions.

Figure 2 is a side elevation of the hopper with the lower part thereofin sections to show the relative positions of the pansafter the lowerone has been closed and the upper one lowered in the firststep offlushing.

Figure 3 is a rear elevation of the hopper with l the operatingmechanism connected therewith.

Figure 4 is a rear view of an arm for raising the lower pan.

Figure 5 is a section on line 55 of Figure 4. Figure 6 is a verticalsection through one end rJof'an operating lever showing the manner inwhich this lever is connected to an arm for moving one of the pans. l r

Figure 7 is an end view of a bearing member or bushing composedofbakelite or some other material not a conductor of electricity.

Figure 8 is a side elevation of .the bushing shown in Figure 7.

Figure 9 is a longitudinal vertical section throughthe valve mechanismcontrolling the admission of water to the hopper.

Figure 10 is a longitudinal vertical section through a dash-potmechanism for regulating and controlling the return of the flush pans totheir normal positions.

Figure 11 is a section on line I l|l of Figure 1.

Figure 12 is a section on line l2-I2 of Figure 1 showing the manner andmeans by which the bowl is attached to a supporting member.

Figure 13 shows the T belt usedfor attaching the bowl to its supportingstructure and for attaching the valve structure to the bowl.

In Figures 1, 2 and 3 there is shown applicant's complete water closetstructure, in which a bowl of vitreous earthenware or any other materialis indicated by thenumeral I. This bowl has a downwardly extendingcentral spout 2 which forms an outlet 3 into a lower compartment of castaluminum alloy or any other material suitable for forming a base member4 on which the bowl rests and which has at its lower end a base 5 and anoutlet 6 immediately beneath the outlet 3. The outlet 3 of the bowlcompartment may be closed by means of a cup-shaped pan 1 which in itsclosed position surrounds and fits over the spout at its lower end andcontains water to form a water seal. On one side of the pan I is anextension 8 adapted to receive a shaft 9 suitably supported by bearingsin opposite sides of the base member 4. The pan is held in position onthe shaft as by means of a set screw l0 The lower outlet 6 may be closedby means of a pan II whichmay be of any suitable shape or form toproperly close the outlet. This pan H is provided with arms l2 which areformed to receive ashaft l3 and are heldin suitable position thereon bymeans of set screws l4, one adjacent each arm. The shaft l3 and theshaft 9 are supported in bearings or bushings such as shown in Figures 7and 8.

The base member 4 is provided at each side with means for supporting alever 15, such as a pivot l6. These pivots may be studs projecting fromthe sides of the base member or other suitable structures. On the frontend of the lever I5 is a foot-piece", while the rear end of the hasvoppositely disposed outlets 38 therein.

(lit

lever is slotted at l8, as shown in Figure 6, to receive the lower endof a link l9 which is composed of two parts, one threaded into theother. One part has an elongated hole 28 therein to receive a pin 2| inthe rear end of the lever IS. The other part of link I9 extends upwardlyand has attached to its upper end one end of an arm 22 by means of abolt or pin 23. The other end of the arm 22 from the bolt 23 is attachedto one end of the shaft 3 for moving the pan 1. The

connection between the shaft 8 and the arm 22.

member 28 which is pivotally attached to one end of an arm 29 by meansof a bolt or pin 38. The other end of the arm 28 is attached to one endof a valve stem 3| slotted at oneside, as indicated by numeral 32, toreceive the arm 28 which has therein a hole similar in shape to the endof the stem. The arm 29 is held against sliding movement on the valvestem by means of a screw 33. This valve stem is adapted to rotate in avalve casing 34 located at the rear of the bowl and supported thereon bymeans of a bracket 35 attached to the valve casing by means of a studand nut mechanism 36 and attached to the bowl by means of bolts 31. Thevalve casing In Figures 1 and 2, one of these outlets is shown as beingconnected to the bowl by means of a suitablecoupling 39, while theother. oppositely disposed outlet is closed by means of a plug 40. Oneend of the valve casing has therein a hollow plug 4| which serves as abearing and sup-' port for the valve stem 3|. Between the inner end ofthe plug 4| and the casing is a packing 42 of any suitable material.This plug is thread 44 and has threaded therein a sleeve member 45adapted to hold the packing in place and force it against the surface ofthe valve stems. A looknut 45' is threaded on the sleeve member 45 forengagement with plug 4| to hold the sleeve member 45 in position in theplug 4| and against the packing 44'.

On the inner end of the valve stem is a disc like head 46 which hasprojecting therefrom a.

cam projection 41. Supported on a pin or other suitable means 48 in thecasing is a lever which has adjacent its pivot 48 a transverselyextending part 49 and remote from the pivot 48 and at right angles tothe part 49 is a longitudinally extending part 58 adapted to be engagedby the, cam projection for operating a valve which' has a valve stem 5|engaged by the part 5|] of.

the lever. The stem 5| is guided and supported by means of a guide 52attached to and supported by the valve casing.

On the end of the valve stemaway from the I lever is a valve member 53composed of any suitable material. This valve member rests against ashoulder 54 formed around the valve stem and is held in position bymeansof a plate 55 attached to the valve stem by means of a screw 56 thread-.ed into a longitudinally disposed hole in the.

valve stem. Extending from the plate 55 and longitudinally of the valvestem is a sleeve 51 which is adapted to move to and fro in a cup member58. In the cup member 58 and the sleeve 51 is a spring 59 which tends tohold the valve against the valve seat 53. The cup member 58 is locatedcentrally of an annular member 60 threaded into the end of the casing 34and is supported with relation thereto by means of "radial arms 6|.Suitably connected to the end of the casing 34 adjacent the cup member58 is one end of an inlet L 32.

On one end of the shaft I3 is an arm 63 which has in the lower endthereof a substantially semicircular-shaped hole 64 to receive asimilarly shaped end of the shaft l3. This arm and its cooperatingstructures-maybe placed at either side of the hopper and for. thatpurpose the lateral sides of the hopper are similarly constructed andsimilarly formed. The arm 63 is held against longitudinal movement onthe shaft l3 by means of a screw 65 which has its inner end formed into'a point 66 adapted to rest in a similarly shaped seat in the shaft l3.The upper end of the arm 63. has thereon a head 61 with-a well 68therein. In this well is a plunger Gil-which has a stem 18 extendingthrough a'hole in the bottom of the well. The outer end of the stem 18is threaded to receive an adjusting nut 12. By means of this nut thetension of a spring 12' around. the stem 18 may be adjusted and theextent of the projection of the plunger from the head may be adjusted.

The lower end of the arm 63 is provided with a lug 13 adapted to fit ina slot 15 in the lower end of a plate 14, pivoted to the lug 13 by meansof a plum bolt 16. The upper end of the plate 14 is guided in itsmovement inrelation to the arm by means of a pair of spaced guides 11extending from the head 61 on opposite sides of the plunger.

plunger 59. plate 14 is formed of hard bronze or othersuitable hardmaterial so that it will resist wear.

' In order to swing the pan upward the rear end of the lever l5,indicated by the numeral 19, engages the forward hard surface 18 of theplate or arm 14.

Extending inwardly from the upper end of the link 26 is a boss 8|] towhich is pivotally connect ed one end of a head member 8|, which hasits.

stem opposite the head 8| isa piston which is engaged by one end of aspring 81. This spring is engaged at its other end by a shoulder 86located within the cylinder adjacent the inner end of the sleeve 83 andbetween the sleeve 83 and the shoulder 86 is a packing 88 adapted toprevent the escape of any fluid from the cylinder. The end of the stemadjacent the piston 85 is provided with a longitudinal passageway 89connected at its upper end by atransverse passageway 98 with theinterior of the cylinder above the piston. At the lower end of thecylinder is a member 9| which has a threaded projection 92 extendinginto the lower end of the cylinder.

At one side of the cylinder is a barrel 93 which has in its upper end ahead 94 attached to the cylinder by means of a strap 95. The head isprovided with a threaded opening which is closed by means of a threadedplug 96. A passageway The upper end of this plate 14 is. located betweenthe arms I! and against the The forward face or surface of the likeprojection I05 atone end. shafts 9, l3, l6 and a brass bolt Hi2 passingsuitable manner.

engage the studs H4.

2,204,704 from the lower end of the barrel into the lower end of thecylinder is indicated by the numeral .9'1- and is controlled by means ofa ball valve member 98 adapted to rest on a valve seat 99 formed in theextension 92.-'Ihe upper end of the barrel is provided with a passagewayI00 leading into the cylinder so that fluid may pass from the barrelinto the cylinder or from the cylind'er into the barrel. The member 9'!is provided at its lower end with a lugdlfll adaptedto fit between earsI02 of either pair of two pairs of ears located on the base, as is shownfrom Figure 3. The base is provided with a plurality of holes H13, asshown in Figure 1,. for the purpose of attaching the apparatus to asuitable support, such as the floor of the vehicle. These holes arelined or have therein a lining of Bakelite or some other insulatingmaterial; as indicated by the numeral I04.

The various shafts are supported in bushings or bearings made ofBakelite or-of likesuitable material. These bearings are shown inFigures '7 and 8 and have a eylindricalpart N15 with a head- Each of thethrough the ears I02 and theiug ltll, asshown in Figure 11, is providedwith these bushings or By means of these bushings or bearaskirt or apronH15 which fits at its upper end "against a flange ill'l ioriningashoulder beneath the bowl andat its lower end against ashoulcler l 08formed on the base. Thisslnrt may be easily removed or placed inposition whereby access to the working mechanism is possible. For thepurpose of holding the apron or skirt in position there is provided onthe skirt at each side of the hopper means for receiving a bolt or screwH0 which engages suitable arms or projections I539 attached to the rearpart of the hopper in any The bowl rests upon thegasket Hill which isbetween the bowl and the upper rart of the bowl support, and is attachedthereto by means of a T-shaped bolt which has a stern HI and a headformer of lateral projections H2 which have pressions H3 adjacent thestem. -Whenthis bolt isapplied to the hopper for holding the bowl inplace, the wings or projections M2 engage studs such as l l 4 shown inFigure 1.2, for preventing the rotation of the bolt.

For the purpose of supporting the valve 34 on the hopper, the rear ofthe bowl is provided with a false back I which has a space between. itand the main back part of the bowl which is entered by means of openings2' as shown in Figure 3. This false backhas a pair of vertical havetheir heads inserted through the slots H5, thebolts and heads arerotated until the heads applied to the bolts for holding the valvecasing bowl.

Through the operation closed pan l l.

the part of the. cylinder beneath the piston.

After this, the nuts are e of the mechanism shown in Figure 1.0 the pansare returned to and maintained in the positionsshown in Figure 1 whereone pan has a sufficient amount of water therein that a water seal" isformed between the pan and thespout 3. i

. When it is desired to fiushthe hopper the front end of the lever i5 ispressed down by placing the foot on the part H. In this operation theend (9 of this lever engages the surface T8 of the plate 14 so thatthrough the movement of the arm (53 pan ll is first raised intoengagement with the lower edge of the spout 6. Thereafter bya continuedmovement of the lever Hi the pin 2| is brought into engagement with thelink ii? at the upper edge of the elongated hole so that the link H! isforced upward thereby lowering the pan 1 and through the link 26operating the arm 2'9 to open the valve for admitting water into thehopper to be supported by the is dumped from pan 1 into pan H, pan H iskeep the pan 4 i closed may be increased or regulated by means of thenutl2 and the spring 72'.

The tension of. the spring 12 may be regulated a: adjusted through thenut lllon the end of the bolt 7!! and when properly adjusted the wateraccumulating inthe hopper .may by its weight slightly lower the pan Hthrough its weight so) that the water will escape through the bottom. ofthe hopper and not over-flow the top of the'= By this adjustment, adesired water level bowl. may be maintained in the bowl and an. overflowof the water prevented in the event that the foot lever be held in alower position for any unusual length of time. i

When the foot is removed from the lever 45 the operation of the springinthc cylinder M acts to close the pan 1 about the spout 3 and to permitthe lowering of the pen I! by its own Before the valve is completelyseated,

weight. a sufiicient amount of water escapes into the pan l for thepurpose of forming the close water seal. The time in which thepansarereturned to the position shown in Figure 1 from the posil tion shownin Figure 2, is determined by the speed with which the parts shown inFigure 10 operate. The spring Bl; acting upon the piston fihtends toreturn the pans to the position shown The presence of a fluid in thecylinder {i4 and in the barrel 93 tends to retard the in Figure 1.

As the piston moves outwardly in the cylinder,

fluid is drawn from the barrel into the cylinder by the ball valve 38.and the fluid from the part of the cylinder above. the piston iiiirnayeither pass through the hole 1M into the barrel or through the hole 9i!and passageway 39 into speed with which the spring moves the piston andthe parts connected thereto may be varied by using fluids of difierentviscosity. Light oils wouldpermit a more rapid movement of the piston inthe cylinder than would heavy oil.

The valve in the valve casing ii lis so positioned with relation theretothat'the valve casing after the hopper has been flushed is substantiallyfree of anywater thereinso that there is no danger of the valve casingbeing injured by water freezing.

During the time that the matter The i pan, an arm for operating saidpan, and a mem ber engaging said arm and operable to move along thesurface of said arm for moving the arm and operating said pan, saidmembercomprising a lever having at one end a foot piece.

2. In a water closet, a hopper having a flush pan, an arm having thereonan adjustable member for operating said'pan, and a member engaging andmoving along the surface of said adjustable member for moving the armand operating the pan.

3. In a water closet, a hopper having a flush pan, an arm having thereonan adjustable member for operating said pan,means adapted to move alongthe surface of said adjustable member for moving the arm and operatingthe pan, and

m means tending to urge the adjustable member away from said arm andagainst said first named means.

4. In a water closet, a hopper having a flush pan, means to move saidpan into closing position, and dashpot means for moving said pan to openposition and for regulating the speed at which it moves to openposition.

5. In a water closet, a hopper having a flush pan and a connection to asupply of water, means 0perating at first to move'the pan into closingposition and thereafter to admit water to the hopper, and means actingon the release of the first named means to automatically cut off thewater and to move the pan to open position.

6. In a water closet, a hopper having a flush pan and a connection to asupply of water, means,

in the cylinder and a spring in the cylinder operating on the piston;

7. In a water closet, a hopper havingna flush pan and a connection to asupply of water, means operating at first to move the pan into closingposition and thereafter to admit water to the hopper, and means toautomatically move the pan to open position and cut off the water, saidlast fili named means comprising a cylinder having a fluid therein, apiston in the cylinder, a spring in the cylinder operating on the pistonand a by-pass for the fluid.

8. In a water closet, a hopper having a fiush pan and a connection to asource of water, means 'to move the pan to flushing position and at thesame time to admit water to the hopper, and

inder, piston in the cylinder and a spring in the cylinder acting on thepiston.

10. In a water closet, a hopper having a flush panand a connection to asource of water, means to move the pan to flushing position and at thesame time admit water to the hopper, and means to automatically shut offthe water and to move the pan into position to close the hopper, said'lever will by, sliding'engagement with said one 1 arm cause one pan-tomove to a closing position. and thereafter will by the loose linkconnection cause the other'pan tomove to an open position.

12. In a water closet,'a hopperhaving a pair of flush pans, an armon-eaoh pan, a link connected to one arm, and amember slidablyengaging'the other arm to move it-and having a loose connection with thelink whereby a movement of said member will cause said other: arm'- tobe moved to first close one pan and the link to be moved to thereafteropen the other pan.

13. Ina water closet, a hopperjhaving a pair' of flush pans; said panshaving an initial flushing position "and a final flushing'position,means to move said pans to initial flushing position and admitwater intothe hopper and means on release of first named means toautomaticallymove said pans from the initial flushing. position tofinal:

flushingposition. 1

14. In a'water closet, a hopper having a pair of flush'pans, said panshaving an initial flushing and a final flushing position, means to movesaid pans to initial flushing position and means on release of firstnamed means to automatically move said pans from the initialfiushingposition to final flushing position, said last named meanscomprising relatively movable members, a spring for moving said membersand a fluid for regulating the movement of said members; Y I

15. Ina water closet, a hopper having a pair of fiush pans, meansto movesaid pans to initial flushing position and means to move said pans fromthe initial flushing position to final fiushing position, said lastnamed means comprising a cylinder, piston in the cylinder, a springacting onthe piston and a fluid in the cylinder to retard the movementof the piston in the cylinder;

16. In a water closet, a hopper having a pair of flush pans and aconnection to a water supply, means to move the pans and to open theconnection for flushing the hopper, and means cooperating with the firstnamed means'to make regular and smooth the movements of the pans, saidlast named means comprising a dash-pot structure between the first namedmeans and the hopper.

17. In a water closet, a hopper having a pair of pans, means tending tohold each pan in one position, and means to move each pan to anotherposition for flushing the hopper, and means to admit water to the hopperfor flushing purposes,

said first means acting to return each pan to its first position in aregular and even manner, and acting to regulate" and to smooth theaction of the second named means.

18. In a water closet, a hopper having a pair of pans, an upper and alower, and a connection to a water supply, means movable to first closelower pan by its initial movement and to keep lower pan in firm positionand thereafter on'further movement to open upper and openwa terconnectionfor flushing-while lower pan remains closed and meanscooperating with the first named means to make regular and smooth themovementsof both pans, said last namedmeans',

comprising a dash-pot structure between the first named means and thehopper.

19. In a water closet, a hopper having a lower pan, an upper pan and aconnection to a water supply, movable means adapted on its initialmovement to close lower pan and thereafter on further movement to openthe upper pan and open the water connection to flush hopper, whileholding the lower pan in a closed position, and means to make regularand smooth the movements of both pans, said last named means also actingto close the upper pan and open the lower pan. 20. In a water closet, ahopper having a lower pa-n, an upper pan and a connection to a watersupply, means operable first to close lower pan and thereafter to openthe upper pan and open the water connection to flush the hopper whilethe hopper and on the pan to bringthe pan to and hold it in a closedposition. 22. In a water closet, a hopper having a lease, a valvemechanism for admitting water to the hopper, a pan for flushing thehopper, a connection between the valve mechanism and the pan, and meansattached to the base and connected to said connection for automaticallyoperating the valve mechanism to shut off the water from the hopper andthe pan to bring the pan to closed position and to hold the pan inclosed position. I 23; In a water closet, a hopper having a flush pan,an arm for moving the flush pan to open and close the hopper, a platemounted on the arm, an adjustably and resiliently mounted member forholding the plate in spaced relation to the arm, and means to engage theplate for operating the arm to open and close the pan.

24. In a Water closet, a bowl having a flush pan, an arm adapted tooperate the pan to open and close the bowl, a plate mounted on said arm,resilient means to hold the plate in spaced relation to the arm, and alever pivotally mounted on the hopper with one end engaging the platefor operating the arm to move the pan to open and close the hopper.

25. In a water closet, a bowl, a shaft rotatably mounted on said bowland, having its ends projecting beyond the bowl, a flush pan on theshaft adapted to open and close the bowl, an arm having in one end ahole to receive one end ofthe shaft, means to prevent the movement ofthe arm on the shaft, 2. plate acljustably and resiliently mounted onthe arm, a pivot member on each side of the bowl, and a lever adapted tobe pivotally mounted on either of the pivot members and having an endengaging the plate whereby on operation of the lever the arm isoscillated for moving the pan to open and close the bowl.

26. In a water closet, a hopper having an outlet, a pan to close theoutlet and a water inlet, a valve to admit water through said inlet tothe hopper, and dashpot means acting to simultaneously close the valveand move the pan to close theoutlet.

27. In a water closet, a hopper having a dis-- charge passageway, a panadapted to close at one point said passageway and a water inlet valve toadmit water to the hopper, means acting to close the valve and move thepan to close the passageway, a second pan adapted to close saidpassageway at another point, and means acting to first move the secondpan to close the passageway and thereafter acting against the firstnamed last named means actingto retard and make smooth the operation ofthe first named means.

JOHN C. SCHUMACHER.

